3878933187 has 64 divisors (see below), whose sum is σ = 5709496320. Its totient is φ = 2335132800.

The previous prime is 3878933161. The next prime is 3878933189. The reversal of 3878933187 is 7813398783.

It is not a de Polignac number, because 3878933187 - 2⁸ = 3878932931 is a prime.

It is a super-2 number, since 2×3878933187² = 30092245338419953938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3878933189) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29610112 + ... + 29610242.

It is an arithmetic number, because the mean of its divisors is an integer number (89210880).

Almost surely, 2^3878933187 is an apocalyptic number.

3878933187 is a deficient number, since it is larger than the sum of its proper divisors (1830563133).

3878933187 is a wasteful number, since it uses less digits than its factorization.

3878933187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424.

The product of its digits is 6096384, while the sum is 57.

The square root of 3878933187 is about 62281.0820956091. The cubic root of 3878933187 is about 1571.2215717660.

The spelling of 3878933187 in words is "three billion, eight hundred seventy-eight million, nine hundred thirty-three thousand, one hundred eighty-seven".